2489691079 has 2 divisors, whose sum is σ = 2489691080. Its totient is φ = 2489691078.

The previous prime is 2489691053. The next prime is 2489691121. The reversal of 2489691079 is 9701969842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2489691079 - 2¹¹ = 2489689031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2489691179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244845539 + 1244845540.

It is an arithmetic number, because the mean of its divisors is an integer number (1244845540).

Almost surely, 2^2489691079 is an apocalyptic number.

2489691079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2489691079 is an equidigital number, since it uses as much as digits as its factorization.

2489691079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The square root of 2489691079 is about 49896.8042964677. The cubic root of 2489691079 is about 1355.3407237635.

The spelling of 2489691079 in words is "two billion, four hundred eighty-nine million, six hundred ninety-one thousand, seventy-nine".